Process of and material foe the   production of metal hydrates and for



Patented Feb. ac, 192:3.

un -re n states James nann REID, o nnnanseono, VERMONT, essrsnoa'ro'rrnoivies Q GA F sosron, MASSACHUSETTS.

PRQGESS OF AND MATERIAL Nb, Drawin T b all idiom 2' i may concern Beak-11mm that I, JMu-ns HnNnY llnm,

a citizen ofth'e United States, residing at smasher-o, in the county of Bennington and e- C a otate of-Ve'rmont, have'invented a certain new and useful"Improvementin Processes of and lvlaterials for the Production of' Met al'I-Iydrates and for the Production of Gas,-of which the following is fulhelear, and exact description.

This invention relates to the preparation or productioi'ri: of' sodium or potassium hydroxide, and has forits general objectto provide a process by which the. said hy- 15 droxide may besecured,together with car- --l bide material suitable for the generation of 2 5 portions of 100'lbs. of'the feldspar to 4-1 lbs. of the coal, the. feldspar and the coal havingbeen previously reduced to a finely divided condition aiitl iiitimately mingled. This .mixtureis then introduced into one or more're torts,sucli asareused in the manufacture of gas orlin lay-product coke ovens, and is there subjected to a temperat'ure of from 1400 F. to 2800. F. for the purpose of convertingthe c'oal' intocoke and secur- 5 ing a strong coke-like aggregate of the feldspar and coke capable of most efficient reduction in an electric furnace.

In this retorting operation, the gases which are obtainable by the ordinary distil- 4 lation of bituminous coal will be evolved and, in addition, a quantity of gas produced by the decomposition of the tarry and oily constituents of the coal, this decomposition and cracking into gas of the tarry and oily products being secured through the contact of such products with the finely-divided glowing particles of the feldspar.

The only change that has been accomplished by the retorting operation is the conversion of the coal into coke, with the production of the gases above mentioned,

and the production of a strong coked mix ture of the feldspar with the coked coal.

For; THE rnonUoTIoNor METAL HYDRATES AND FOR THE PRODUCTIONDF GAS.

Application filed January .37, 1921. Serial No.440,343.

flghis mixture, by reason of its strength and i condition for treatment in an electric furnace, constltuting an ideal uniform resistor to the passage of'th'e electric currenttherethrough. The materialmay be supplied to anystandard type of electric furnace, but I prefer a furnace of the continuous delivery type, such, for instance, as shown in my apliigcltlOn No. 358,456 filed February 13,

In this furnace, the material'will be reducedto-aluminum carbide, aluminum oxv carbide, or to a material'of the nature of silicon carbide, but harder than the" latter dependent upon thetemperature" and other I conditionswithin the furnace.

During the carbide reaction, Na,()* or 1x 0 will be evolved depending, upon the use of. sodium or potassium feldspar, to-' gether with a gas consisting mainly of carbon' monoxide. These gases will beconducted through the hydraulic main", scrubber and other appliances generally employed in gas plants; In the scrubber, the Nail or K O'will be Sublimated or precipitated,- forming with the water NaOH while the carbon monoxide andother gases pass on to the holder.

With' the proportion of feldspar and coal as given, the most" probable solid products in the electrical furnace will be AlQG 1OSi- 0 but, by, increasing-the proportion of carbon, the oxygenofthe' S10; may be taken up, leaving aluminum silicon carbideof the nature of carborundum, but probably harder. Q

Having thus described my invention, What I claim is:

1. The herein described process which comprises heating in a retort sealed against the admission of air thereto a mixture of an aluminum-silicon compound of a metal with cokable carbonaceous material, reducing the solid educt from the retort in an electric furnace, thereby producing an oxide of the metal, and separating such oxide from the gases evolved during the reducing operation.

2. The process of recovering sodium or potassium and producing gas Which comprises retorting a. mixture of an aluminumsilicon compound of such metal with cokable carbonaceous material, collecting the evolved uniformity of'composition, is in ideal or non,

gases, reducing the solid educt from the retort in an electric furnace, thereby producing an oxide of the metal, and separating such oxide from the gases evolved d uriug the reducing operation.

3. The herein described process which comprises heating in a retort sealed against the admission of air thereto a mixture of an aluminum feldspar of a metal with cokable carbonaceous material, reducing the solid educt from the retort in an electric furnace, thereby producing an oxide of the metal, and separating such oxide from the gases evolved during the reducing operation.

4. The process of recovering sodium or potassium and producing gas which comprises retorting a mixture of an aluminum feldspar of such metal with cokable carbonaceous material, collecting the evolved gases, reducing the solid educt from the retort in an electric furnace, thereby producing an oxide of the metal, and separating such oxide from the other gases evolved during the reducing operation.

5, The herein described process comprising retorting a mixture of cokable carbonaceous material with a metal aluminum silicate, collecting the evolved gases, reducing the solid educt from the retort in an electric furnace and thereby producing gases and the oxide of such metal, collecting the evolved gases, and sublimating the said metal oxide contained therein.

6. The herein described process comprising heating in a retort sealed against the admission of air thereto a mixture of cokable carbonaceous material with a metal aluminum silicate, reducing the solid educt from the retort in an electric furnace and thereby producing gases and the oxide of such metal, and sublimating the said metal oxide contained in such gases.

7. The process which comprises retorting a mixture of cokable carbonaceous material with an aluminum silicate of a metal, recovering the evolved gases, heating the coked mixture from the retort, with the evolution of carbon monoxide and the oxide of said metal, collecting the said gas and oxide, and. separating the metal oxide from the said gas.

8. The process which comprises retorting a mixture of cokable carbonaceous material with the aluminum silicate of a metal, thereby to produce a coked mass, collecting the gases evolved in the retorting operation, subjecting the coked mixture to the action of electricity thereby to produce an oxide of such-metal, a'carbide, and a gas consisting principallyof carbon monoxide, collecting such gas, and separating the metal oxide therefrom.

9. The process which comprises subjecting a coked mixture of cokable carbonaceous material with a metal aluminum silicate to a temperature sufficient to convert the mix-. ture into a metal carbide, a gas containing carbon monoxide, and the oxide of such metal.

10. The process which comprises subjectthereby to produce a gas and the oxide of such metal, and sublimating such oxide.

In testimony whereof, I hereunto afiix my 

